1. (1) Land, isolation, and field standards for hybrid sorghum seed certification are:

   Field Standards
   Class (**)	Land Standards Minimum Years(b)	IsolationStandardsMinimumFeet	Pollen Shedding By Seed Parent Maximum At Any One Inspection	Other Varieties And/Or Off-Type (a)
   Doubtful	Definite
   Foundation	1		990	1:3,000	1:50,000	1:20,000
   Certified	1		660	1:1,500	1:20,000	1:1,000

   (**)	Pollinator Lines: B = Maintainer, R = Restorer

2. (2) Seed standards for hybrid sorghum seed certification are:

   1. (a) If off-type plants are found at the time of inspection, all seed heads within a radius of five feet of these plants must be removed from the field before the field is approved.

   2. (b) Hybrid sorghum is not eligible for certification if planted on land that grew sorghum the previous year unless:

      1. (i) The preceding sorghum crop is the same variety and is inspected and approved for the same or higher certification classification; or
      2. (ii) The preceding sorghum crop is a variety which differs substantially in plant growth characteristics from the variety planted. However, grain type sorghum or sweet sorghum is not eligible for certification if planted on land that grew grass type sorghum the previous year.

   Class	Off-Type Max. Seeds/lb.	Pure Seed Min. %	Inert Max. %	Other Crop Max. Seeds/lb.	Weed Max. %	Germination Min. %
   Foundation	2	98.00	2.00	2	0.10	85.00
   Certified	10	98.00	2.00	10	0.10	85.00

   (**)	Pollinator Lines: B = Maintainer, R = Restorer

[Statutory Authority: RCW 15.49.005, [15.49].021, [15.49].310, [15.49].370, 15.140.030, and chapter 15.49 RCW. WSR 25-09-035, s 16-302-675, filed 4/9/25, effective 5/10/25. Statutory Authority: RCW 15.49.005, 15.49.081, 15.49.310, 15.49.370(3) and chapter 17.24 RCW. WSR 00-24-077, § 16-302-675, filed 12/4/00, effective 1/4/01.]